Really awkward bug with the input language

Hey guys, im having some really annoying issue with almost every game i play, basically i can't move the character with "WASD" set. If i remap the movement to the arrows the movement works fine, im having this issue on my PC keyboard and on my laptop too (the bug persists on my laptop native keyboard and the external PS2 keyboard -usb 2.0 or usb 3.0 connected). The bug appears on games such as Team Fortress 2, Wow, Aliens vs Predator, Hitman etc, and it is pretty annoying. On games like Assassins Creed and Skyrim i dont bump into this issue tho.

I tried changing the input language to US, but it doesnt work. My keyboards support both Cyrillic and Latin, but its almost a year later and i still havent found a solution to this.

I have tried other letters but it doesn't work, the symbol keys work perfect however- numbers, arrows etc. Basically you can see a struggle of the character to move, but he passes like half a feet over 10 keyboard clicks, which is beyond being playable.

I forgot to point out that my OS is Win7 x64 Ultimate on both the PC and the laptop.